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<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<body>
  <script>
    class A{
      //保存在类身上的
      static name = '张三';
      static run(){
        console.log('昨天晚上梦见老四了~~');
      }
    }

    // let a = new A();
    // console.log(a);

    console.dir(A);


  </script>
</body>
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